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1. WO2019045130 - METHOD FOR PREPARING HIGH-PURITY AMMONIUM DIHYDROGEN PHOSPHATE USING AMMONIUM PHOSPHATE WASTE LIQUID

Publication Number WO/2019/045130
Publication Date 07.03.2019
International Application No. PCT/KR2017/009421
International Filing Date 29.08.2017
IPC
C01B 25/28 2006.01
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF
25Phosphorus; Compounds thereof
16Oxyacids of phosphorus; Salts thereof
26Phosphates
28Ammonium phosphates
CPC
C01B 25/28
CCHEMISTRY; METALLURGY
01INORGANIC CHEMISTRY
BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; ; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
25Phosphorus; Compounds thereof
16Oxyacids of phosphorus; Salts thereof
26Phosphates
28Ammonium phosphates
Applicants
  • 세종화학 주식회사 SEJONGCHEMICAL CO., LTD. [KR]/[KR]
Inventors
  • 육근세 YOUK, Geun Sae
  • 박희억 PARK, Hee Aurk
Agents
  • 특허법인 공간 GHONG-GAN INTERNATIONAL PATENT LAW FIRM
Priority Data
10-2017-010869728.08.2017KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD FOR PREPARING HIGH-PURITY AMMONIUM DIHYDROGEN PHOSPHATE USING AMMONIUM PHOSPHATE WASTE LIQUID
(FR) PROCÉDÉ DE PRÉPARATION DE DIHYDROGÉNOPHOSPHATE D'AMMONIUM DE HAUTE PURETÉ AU MOYEN D'UN LIQUIDE RÉSIDUAIRE DE PHOSPHATE D'AMMONIUM
(KO) 인산암모늄 폐액을 이용한 고순도 인산이수소암모늄의 제조방법
Abstract
(EN)
The present invention relates to a method for preparing ammonium dihydrogen phosphate using an ammonium phosphate waste liquid. According to the present invention, a powder state of ammonium dihydrogen phosphate having purity of 98 %(w/w) or more can be prepared from the ammonium phosphate waste liquid. Furthermore, environmental contamination can be reduced by recycling the ammonium phosphate waste liquid, and ammonium dihydrogen phosphate can be obtained at high yield and low cost by a simple preparation process.
(FR)
L'invention concerne un procédé de préparation de dihydrogénophosphate d'ammonium au moyen d'un liquide résiduaire de phosphate d'ammonium. Selon l'invention, un dihydrogénophosphate d'ammonium à l'état de poudre ayant une pureté d'au moins 98% (p/p) peut être préparé à partir du liquide résiduaire de phosphate d'ammonium. En outre, la contamination de l'environnement peut être réduite par recyclage du liquide résiduaire de phosphate d'ammonium, et le dihydrogénophosphate d'ammonium peut être obtenu avec un rendement élevé à faible coût par un procédé de préparation simple.
(KO)
본 발명은 인산암모늄 폐액을 이용한 인산이수소암모늄의 제조 방법에 관한 것으로서, 본 발명에 따르면 인산암모늄 폐액으로부터 분말 상태의 98%(w/w) 이상의 순도를 갖는 인산이수소암모늄을 제조할 수 있다. 또한, 인산암모늄 폐액을 재활용함으로써 환경오염을 감소시킬 뿐만 아니라, 간편한 제조공정에 의해 고수율 및 저비용으로 인산이수소암모늄을 얻을 수 있는 이점이 있다.
Also published as
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